'Ghost Hunters' | 2004-present

Sheryl Nields / Syfy

The ghost: The spirits present themselves in the form of lights, shadows and audio picked up by recording equipment brought in by a team of investigators. Boo who? Jason Hawes, left, and Grant Wilson of the Atlantic Paranormal Society travel the country as ghost-busters looking to either diagnose or debunk paranormal activity with the help of EMF meters (for measuring electromagnetic fields), night-vision cameras, thermometers and more.

The ghost: The spirits present themselves in the form of lights, shadows and audio picked up by recording equipment brought in by a team of investigators. Boo who? Jason Hawes, left, and Grant Wilson of the Atlantic Paranormal Society travel the country as ghost-busters looking to either diagnose or debunk paranormal activity with the help of EMF meters (for measuring electromagnetic fields), night-vision cameras, thermometers and more. (Sheryl Nields / Syfy)

The ghost: The spirits present themselves in the form of lights, shadows and audio picked up by recording equipment brought in by a team of investigators. Boo who? Jason Hawes, left, and Grant Wilson of the Atlantic Paranormal Society travel the country as ghost-busters looking to either diagnose or debunk paranormal activity with the help of EMF meters (for measuring electromagnetic fields), night-vision cameras, thermometers and more.